Prefetch update packages

[dennis_u]

Hello everyone.

I wanted to update a remote box from 24.1 to 24.7 today. The download of the large package was in the kilobyte/sec range on the first attempt, the second attempt was initially in the megabyte/sec range and then it was in the kilobyte range again. Then I was out of the maintenance window agreed with the team.

Question: can I download the packages (the large one of 800MB) beforehand and then apply them, comparable to an "apt install ./local-pkg.deb"? Something with a cache directory? As I said, it is an upgrade of a remote box.